CY74FCT16646ATPVCT

Overview

The CY74FCT16646ATPVCT is a registered bus transceiver from the 74FCT logic family, manufactured by Texas Instruments. It features two independent circuits, each handling eight bits for a total of 16 channels. The device operates with a supply voltage range of 4.5V to 5.5V and utilizes a 56-pin SSOP package. It provides three-state outputs and supports TTL input levels with CMOS output levels. Key electrical characteristics include a propagation delay of 11.1 ns, low-level output current of 24 mA, and high-level output current of -24 mA. The component functions within an operating temperature range of -40°C to +85°C.

Feature Summary

• Integrates clocked registers into the bus transceiver architecture to capture data on the A or B bus.

Applications

• High-speed data bus interfacing in industrial control systems
• Memory buffer applications requiring registered data transfer
• Parallel data transmission between microprocessors and peripheral devices

Procurement Notes

Verify the specific suffix 'TPVCT' against the manufacturer's official documentation to confirm the exact tape-and-reel packaging configuration and moisture sensitivity level. Ensure the procurement channel sources components directly from authorized distributors to guarantee authenticity and traceability. Cross-reference the RoHS compliance status with the latest regulatory updates prior to finalizing orders.

Selection Notes

Select this component when a registered bus transceiver is required for 16-bit wide data paths operating at standard 5V logic levels. The FCT series offers faster switching speeds compared to standard LS logic while maintaining compatible pinouts. Consider the 56-SSOP package constraints for PCB layout if space is limited. Verify that the system design accommodates the specified power dissipation and thermal requirements for the chosen operating environment.

Part Context

This part belongs to the Texas Instruments 74FCT logic family, which bridges the performance gap between standard bipolar and CMOS technologies. The 74FCT16646 variant specifically combines bus driving capabilities with internal latching registers. This integration reduces external component count and improves signal integrity in complex digital systems by synchronizing data transfers across the bus interface.

Replacement Considerations

The 74FCT16646ATPVCG4 is a verified equivalent part number offering identical functionality and specifications. Verify package compatibility and lead-free status when substituting.